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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.spi.component;
+
+import org.apache.tuscany.spi.Lifecycle;
+import org.apache.tuscany.spi.event.RuntimeEventListener;
+import org.apache.tuscany.spi.model.Scope;
+
+
+/**
+ * Manages the lifecycle and visibility of instances associated with a an {@link AtomicComponent}.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ScopeContainer extends Lifecycle, RuntimeEventListener {
+
+ /**
+ * Returns the scope value representing the scope context
+ */
+ Scope getScope();
+
+ /**
+ * Registers a component with the scope component
+ */
+ void register(AtomicComponent component);
+
+ /**
+ * Returns an implementation instance associated with the current request context, creating one if necessary
+ *
+ * @throws TargetResolutionException
+ */
+ Object getInstance(AtomicComponent component) throws TargetResolutionException;
+
+ /**
+ * Returns an implementation instance associated with the current context. If no instance is found, a {@link
+ * TargetNotFoundException} is thrown
+ *
+ * @throws TargetResolutionException
+ */
+ Object getAssociatedInstance(AtomicComponent component) throws TargetResolutionException;
+
+ /**
+ * Persists a new component implementation instance, equivalent to an insert or append operation
+ *
+ * @param component the owning component
+ * @param id the id associated with the instance
+ * @param instance the instance to persist
+ * @param expiration the expiration in milliseconds
+ * @throws PersistenceException
+ */
+ void persistNew(AtomicComponent component, String id, Object instance, long expiration) throws PersistenceException;
+
+ /**
+ * Persists a component implementation instance, equivalent to an update operation
+ *
+ * @param component the owning component
+ * @param id the id associated with the instance
+ * @param instance the instance to persist
+ * @param expiration the expiration in milliseconds
+ * @throws PersistenceException
+ */
+ void persist(AtomicComponent component, String id, Object instance, long expiration) throws PersistenceException;
+
+ /**
+ * Removes a component implementation instance associated with the current context from persistent storage
+ *
+ * @param component the owning component
+ * @throws PersistenceException
+ */
+ void remove(AtomicComponent component) throws PersistenceException;
+}